Its Great For DIY Exhausts,3/4"Threaded Copper Pipe Fitting.
3/4" Threaded Muffler Fits Many Briggs & Stratton Lawn Mower 5 to 8 HP.
Fits Tecumseh model numbers: 9, 9B, 9F, 9R, 100200 series, 130200, 131200 series (5 HP) horizontal, 170400 series (7 HP) horizontal, 170700, 171700 Series, 190400-190799 (8 HP) horizontal; Kohler (4-8 HP) Clinton 1954 series.